Finding the Fourth Proportional to 1,117,910.79, 1,542,744.63 and 608,641.11
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Solution
The fourth proportional to 1,117,910.79, 1,542,744.63 and 608,641.11 is: 839,939.83
Step by Step Solution
- Step 1: Write the proportion equation
1,117,910.79 : 1,542,744.63 = 608,641.11 : x - Step 2: Convert to fraction form
1,117,910.79/1,542,744.63 = 608,641.11/x - Step 3: Cross multiply
1,117,910.79x = 1,542,744.63 × 608,641.11 - Step 4: Simplify right side
1,117,910.79x = 938,977,804,049.74 - Step 5: Solve for x
x = 938,977,804,049.74/1,117,910.79 - Step 6: Final answer
x = 839,939.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.